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Young S, Abamyan A, Goldberg D, Hannallah J, Schaub D, Kalarn S, Fitzgerald Z, Woodhead G. Cryoablation in the liver: how accurately does the iceball predict the ablation zone? Abdom Radiol (NY) 2024; 49:625-630. [PMID: 38036773 DOI: 10.1007/s00261-023-04117-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/23/2023] [Accepted: 10/26/2023] [Indexed: 12/02/2023]
Abstract
PURPOSE To evaluate the accuracy with which the iceball predicts the realized ablation zone in patients undergoing cryoablation of the liver. MATERIALS AND METHODS Continuous patients who underwent cryoablation of primary or secondary malignancies of the liver were retrospectively reviewed. Iceball and ablation zone dimensions on 1 month follow up imaging were collected in three orientations, the long axis (LA), perpendicular transverse (PTR), and perpendicular craniocaudal (PCC). Factors which may predict differences in the measurements were evaluated with regression analysis. Oncologic outcomes were also collected. RESULTS The mean size of the iceball was 5.5 ± 1.1 cm, 3.9 ± 1.1 cm, and 4.4 ± 1.4 cm in the LA, PTR, and PCC orientations, respectively. The mean size of the one-month ablation cavity was 4.3 ± 1.3 cm, 3 ± 1.1 cm, and 3 ± 1.3 cm in the LA, PTR, and PCC orientations, respectively. The iceball was significantly larger than the ablation zone in all orientations (p < 0.001). When comparing HCC and non-HCC patients the Kaplan-Meier analysis of TTLP, the Kaplan Meier curves deviated significantly (p = 0.015, HR 2.26 (95%CI 1.17-4.37)). When a similar analysis was performed looking at TTP again the curves diverged significantly (p = 0.002, HR 2.4 (95%CI 1.37-4.19)). CONCLUSION The iceball seems to overestimate the realized ablation zone by about 1 cm in all orientations during hepatic cryoablation.
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Affiliation(s)
- Shamar Young
- Division of Interventional Radiology, Department of Radiology, University of Arizona, 1501 N Campbell Ave, PO Box 245067, Tucson, AZ, 85724, USA.
| | - Art Abamyan
- Division of Interventional Radiology, Department of Radiology, University of Arizona, 1501 N Campbell Ave, PO Box 245067, Tucson, AZ, 85724, USA
| | - Dan Goldberg
- Division of Interventional Radiology, Department of Radiology, University of Arizona, 1501 N Campbell Ave, PO Box 245067, Tucson, AZ, 85724, USA
| | - Jack Hannallah
- Division of Interventional Radiology, Department of Radiology, University of Arizona, 1501 N Campbell Ave, PO Box 245067, Tucson, AZ, 85724, USA
| | - David Schaub
- Division of Interventional Radiology, Department of Radiology, University of Arizona, 1501 N Campbell Ave, PO Box 245067, Tucson, AZ, 85724, USA
| | - Salil Kalarn
- Division of Interventional Radiology, Department of Radiology, University of Arizona, 1501 N Campbell Ave, PO Box 245067, Tucson, AZ, 85724, USA
| | - Zachary Fitzgerald
- Division of Interventional Radiology, Department of Radiology, University of Arizona, 1501 N Campbell Ave, PO Box 245067, Tucson, AZ, 85724, USA
| | - Gregory Woodhead
- Division of Interventional Radiology, Department of Radiology, University of Arizona, 1501 N Campbell Ave, PO Box 245067, Tucson, AZ, 85724, USA
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Sotirchos VS, Petre EN, Sofocleous CT. Percutaneous image-guided ablation for hepatic metastases. J Med Imaging Radiat Oncol 2023; 67:832-841. [PMID: 37944085 DOI: 10.1111/1754-9485.13594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 09/21/2023] [Indexed: 11/12/2023]
Abstract
The presence of hepatic metastases indicates advanced disease and is associated with significant morbidity and mortality, especially when the hepatic disease is not amenable to locoregional treatments. The primary tumour of origin, the distribution and extent of metastatic disease, the underlying liver reserve, the patient performance status and the presence of comorbidities are factors that determine whether a patient will benefit from hepatectomy or local curative-intent treatments. For patients with metastatic colorectal cancer, the most common primary cancer that spreads to the liver, several studies have demonstrated a survival benefit for patients who can be treated with hepatectomy and/or percutaneous ablation, compared to those treated with chemotherapy alone. Despite advances in surgical techniques increasing the percentage of patients eligible for surgery, most patients have unresectable disease or are poor surgical candidates. Percutaneous ablation can be used to provide local disease control and prolong survival for both surgical and non-surgical candidates. This is typically offered to patients with small hepatic metastases that can be ablated with optimal (≥10 mm) or at least adequate minimum ablation margins (≥5 mm), as high local tumour control rates can be achieved for these patients which are comparable to surgical resection. This review summarizes available evidence and outcomes following percutaneous ablation of the most frequently encountered types of hepatic metastases in the clinical practice of interventional oncology. Patient selection, technical considerations, follow-up protocols and oncologic outcomes are presented and discussed.
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Affiliation(s)
- Vlasios S Sotirchos
- Interventional Oncology/Radiology Service, Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Elena N Petre
- Interventional Oncology/Radiology Service, Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Constantinos T Sofocleous
- Interventional Oncology/Radiology Service, Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
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White MJ, Jensen EH, Brauer DG. A Review of Resection and Surgical Ablation for Primary and Secondary Liver Cancers. Semin Intervent Radiol 2023; 40:536-543. [PMID: 38274223 PMCID: PMC10807965 DOI: 10.1055/s-0043-1777747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
The surgical management of primary and secondary liver tumors is constantly evolving. Patient selection, particularly with regard to determining resectability, is vital to the success of programs directed toward invasive treatments of liver tumors. Particular attention should be paid toward determining whether patients are best served with surgical resection or ablative therapies. A multidisciplinary approach is necessary to provide optimal care to patients with liver malignancy.
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Affiliation(s)
- McKenzie J. White
- Department of Surgery, University of Minnesota, Minneapolis, Minnesota
| | - Eric H. Jensen
- Department of Surgery, University of Minnesota, Minneapolis, Minnesota
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - David G. Brauer
- Department of Surgery, University of Minnesota, Minneapolis, Minnesota
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
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